数据库的加密解密系统——EDSDB

Encryption and Decryption System for Data Base

作者采用多次折半倒排混乱,下标随机线性函数法和n次随机加密法等软件技术,为用户提供了可选1-16位密钥和1-15个+,-,＊。/运算符对密钥处理的功能,可对数据库提供良好的保密性。系统用Turbo Pascal编写了加密解密程序,从而在一定程度上增加了破译的难度。系统具有较好的可移植性和使用方便等特点。

Author used the mutilstep dichotomy inverted mixing, the double linear function with the stochastic subscripts, n-step stochastic encryption and etc. In this system, there were a lot of keys to be available, which could be any number from one to sixteeh order and could be reencrypted with the operation of one to fifteen of +,-,*,or/to the number, in other words, there were the different keys of (256)^(16)in the prompting of English and (3000+256)^(8～14)in the prompting of Chinese. This system could be trans- planted into varieties of minocomputer and microcomputer.